JP6596670B2 - Welding apparatus and welding method - Google Patents

Description

  The present disclosure relates to a welding apparatus and a welding method. In particular, the present invention relates to a welding apparatus and a welding method that perform digital control and generate an arc to process an object.

  In recent years, control circuits such as a power control circuit, a gas control circuit, and a start control circuit of a welding apparatus are programmable in order to cope with high performance and high functionality of equipment. The welding apparatus is generally controlled by software and is widely used as a digitally controlled welding apparatus (digital welding apparatus).

  Various welding methods using a digital welding apparatus have been devised. Detailed conditions can be set for each welding method. For example, there are a DC welding mode in which the output current is DC when the welding object is iron or stainless steel, and an AC welding mode in which the output current is AC when the welding object is aluminum. Further, there is a pulse welding method in which the output is a pulse waveform according to the state of the welding object. Furthermore, it is necessary to change conditions such as output current, pulse frequency, and pulse width in accordance with the thickness of the welding object and the welding posture. That is, it is necessary to set many parameters in the digital welding apparatus.

  In order to set a large number of parameters in this way, the digital welding apparatus includes an encoder whose input unit is formed by a dial, a plurality of switches, and an LED display unit. These parameters are set with reference to the operator's knowledge and experience or construction conditions such as an instruction manual.

  In addition, some welding apparatuses that generate arcs and weld objects to be welded include character display portions such as liquid crystals. A welding device having a welding navigation part has also been devised. The operator inputs welding conditions corresponding to the welding object, the welding posture, and the like to the welding apparatus while following the instructions on the character display unit. The welding navigation unit calculates recommended welding values such as an appropriate welding method and welding current based on the input welding conditions. By using a welding apparatus having a welding navigation part, welding conditions such as a welding method and a welding current can be easily set even if the person is not a welding expert.

  Also disclosed is a method of selecting one of the welding conditions stored in the welding power source of the welding apparatus using a remote controller.

  For example, Patent Documents 1 and 2 are known as prior art document information related to the invention of this application.

JP 2010-201499 A JP 2007-90356 A

  The welding device of the present disclosure includes a welding power source, a welding torch, and a remote controller.

  The welding power source includes a first input unit and a welding navigation unit.

  The welding torch is connected to a welding power source.

  The remote controller has a second input unit and is connected to a welding power source.

  When the welding navigation part is selected, the welding navigation part calculates a recommended welding value according to the first welding condition input by the first input part. Further, when the release operation is executed, the welding power source cancels the recommended welding value, inputs the second welding condition transmitted from the remote controller, and when the release operation is not executed, the second power transmitted from the remote controller is input. Do not enter welding conditions.

  Moreover, the welding method of this indication uses said welding apparatus.

  The welding method includes the following steps.

Select the welding navigation part,
Enter the first welding condition,
Calculate the recommended welding value from the first welding condition,
When the release operation is executed, cancel the recommended welding value, enter the second welding condition sent from the remote controller,
If the release operation is not executed, the second welding condition transmitted from the remote controller is not input.

FIG. 1 is a schematic view of a welding apparatus in the present embodiment. FIG. 2 is a schematic block diagram showing a configuration inside the welding power source of the welding apparatus according to the present embodiment. FIG. 3 is a schematic block diagram showing an example of the operation of the welding apparatus in the present embodiment. FIG. 4 is a schematic block diagram showing an example of the operation of the welding apparatus in the present embodiment. FIG. 5 is a flowchart showing the welding method in the present embodiment.

  Conventionally, in a welding apparatus having a welding navigation section, no remote controller is installed, and all setting, changing, releasing, etc. of conditions are performed by a welding power source. Further, in a welding apparatus having a remote controller and a welding power source, no welding navigation unit is installed, and only a welding current value, a welding voltage value, and the like are changed by an operation from the remote controller.

  That is, conventionally, a method for matching the welding navigation unit and the remote controller has not been disclosed. Here, when the remote controller is simply connected to a welding power source having a welding navigation unit, the setting value of the remote controller is given priority even if the recommended welding value is calculated in the welding navigation unit. Moreover, when enabling the welding recommendation value of the welding navigation part, it is necessary to invalidate the setting of the welding condition by the remote controller. However, after that, the remote controller can no longer be used. That is, welding cannot be performed using the welding navigation unit and the remote controller together.

(Embodiment)
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. FIG. 1 is a schematic diagram of a welding apparatus 1 according to the present embodiment. FIG. 2 is a schematic block diagram showing a configuration inside welding power source 2 of welding apparatus 1 according to the present embodiment. 3 and 4 are schematic block diagrams showing an example of the operation of the welding apparatus 1 in the present embodiment.

  The welding apparatus 1 includes a welding power source 2, a welding torch 8, and a remote controller 9. Here, the welding apparatus 1 may further include a feeding device 7.

  The welding power source 2 includes a display unit 20 and a first input unit 22. The display unit 20 includes LED display units 3A and 3B for displaying alphanumeric characters and the liquid crystal display unit 4 for displaying character information. The first input unit 22 includes a condition setting dial 5 and a condition setting switch unit 6. The display unit 20 and the first input unit 22 constitute an operation unit 28.

  The remote controller 9 has a second input unit 24. The second input unit 24 includes a welding current input unit 10 and a welding voltage input unit 11. The welding current input unit 10 and the welding voltage input unit 11 may be anything as long as they can input numerical values. However, the worker often wears a helmet or mask during welding work. Therefore, it is preferable that the welding current input part 10 and the welding voltage input part 11 are volumes or dials having a convex shape or the like that can be operated by hand without visual observation. Here, as the remote controller 9, an analog remote controller is generally used, but a digital remote controller may be used.

  The welding power source 2 includes a central processing unit 12, a display processing unit 13, an output processing unit 14, and a welding navigation unit 15. The central processing unit 12 calculates welding conditions and the like based on information input from the first input unit 22 and the second input unit 24. The display processing unit 13 performs processing for displaying welding conditions and the like on the display unit 20. The output processing unit 14 performs processing for outputting a welding output to the welding torch 8 based on information (welding signal) from the central processing unit 12. The welding navigation unit 15 calculates a recommended welding value such as an appropriate welding method and welding current based on the input welding conditions.

  As shown in FIG. 3, when the welding navigation unit 15 is not used, the central processing unit 12 of the welding power source 2 always reads the set value of the remote controller 9. As shown in FIG. 4, when the welding navigation unit 15 is used to call the welding condition calculated by the welding navigation unit 15, the central processing unit 12 of the welding power source 2 is connected to the remote controller 9 until the release operation is performed. Do not read setting values.

  The operation | movement is demonstrated about the welding apparatus 1 comprised as mentioned above. FIG. 5 is a flowchart showing the welding method in the present embodiment.

  First, an operator selects the welding navigation part 15 with the switch part 6 (YES of S10). Then, the display on the liquid crystal display unit 4 of the display unit 20 is switched to a condition setting state such as a welding object. From there, the operator inputs the condition (first welding condition) of the welding object by operating the dial 5 and the switch unit 6 of the first input unit 22 (S20). Then, the welding navigation unit 15 calculates a recommended welding value suitable for the input condition (S30). For example, when the operator inputs the material, thickness, etc. of the welding object to the welding power source, the welding navigation unit 15 calculates a recommended welding value such as a welding current value or a welding voltage value suitable for the welding object. And the welding recommendation value is displayed on LED display part 3A, 3B.

  In the present embodiment, when the remote controller 9 is connected to the welding power source 2 and the welding navigation unit 15 is selected, the welding conditions input from the remote controller 9 are input to the central processing unit 12 of the welding power source 2. Not. That is, the welding power source 2 determines whether or not the release operation is executed (S40). If the release operation is not executed (NO in S40), the first power input by the first input unit 22 is performed. A welding signal based on the recommended welding value calculated by the welding navigation unit 15 according to the welding conditions is output to the output processing unit 14 via the central processing unit 12 of the welding power source 2 (S70). And the welding recommendation value is displayed on LED display part 3A, 3B of the display part 20 of the welding power supply 2. FIG.

  Further, in a state where the welding navigation unit 15 is selected, the operator performs the release operation while minimizing the current value set by the welding current input unit 10 of the remote controller 9 (YES in S40). The setting of the unit 15 is canceled (S50), and the welding condition (second welding condition) is input from the second input unit 24 of the remote controller 9 to the central processing unit 12 of the welding power source 2 (S60). And the welding current value which the welding current input part 10 of the 2nd input part 24 of the remote controller 9 shows, and the welding voltage value which the welding voltage input part 11 shows are the display parts of the welding power supply 2 via the central processing part 12. It is displayed on 20 LED display parts 3A and 3B. The central processing unit 12 of the welding power source 2 outputs a welding signal based on the second welding condition to the output processing unit 14 (S70).

  In the present embodiment, “cancellation of setting of welding navigation unit 15” by executing the release operation (YES in S40) specifically means the welding voltage and welding current derived by welding navigation unit 15. The setting value of welding conditions such as (recommended welding value) is canceled.

  When the welding navigation unit 15 is not selected (NO in S10), the welding condition (second welding condition) is input from the remote controller 9 to the welding power source 2 (S60).

  In the welding apparatus 1 of the present disclosure, an operator can operate a welding current value, an operation for canceling the setting of the navigation unit 15, and the like with a remote controller 9 at hand even at a place away from the welding power source 2.

  In other words, the operator can execute a release operation to cancel the setting of the welding navigation unit 15 of the welding power source 2 at a location away from the welding power source 2. Therefore, the operator does not have to return to the welding power source 2 in order to cancel the setting of the welding navigation unit 15. As a result, the worker can reduce labor and time for moving to the welding power source 2 away from the welding location.

  Further, as a canceling operation, the setting of the welding navigation unit 15 is canceled by minimizing the current value set by the welding current input unit 10 of the second input unit 24 of the remote controller 9. That is, at the moment when the setting of the welding navigation unit 15 is canceled, the welding power source 2 is set to a low welding current value set to the minimum by the welding current input unit 10 of the remote controller 9 by the release operation. Therefore, a large current does not flow and it is safe. When canceling the setting of the welding navigation unit 15, if the welding current input unit 10 shows a large current value of about 350 A, for example, the release operation is not executed. For this reason, the second welding condition input by the second input unit 24 of the remote controller 9 is not input to the welding power source 2. As a result, it is possible to prevent the welding object from being accidentally welded.

  The setting of the welding navigation unit 15 may be canceled by minimizing the value of the welding voltage input unit 11 of the second input unit 24 of the remote controller 9. However, the welding voltage is automatically set according to the setting of the welding current. Therefore, it is preferable to cancel the setting of the welding navigation unit 15 by the setting operation of the welding current rather than the welding voltage.

  Further, cancellation (cancellation operation) of the setting of the welding navigation unit 15 may be performed using the welding torch 8 instead of the remote controller 9. That is, after the recommended welding value is calculated by the welding navigation unit 15 (S30), the torch switch 26 of the welding torch 8 is operated a plurality of times within a predetermined time as the release operation execution (S40). Thereby, the setting of the welding navigation part 15 is canceled as cancellation of the recommended welding value (S50), and the welding condition (second welding condition) is input from the remote controller 9 to the welding power source 2 (S60). Then, the central processing unit 12 of the welding power source 2 outputs a welding signal based on the second welding condition to the output processing unit 14 (S70). Here, the fixed time is, for example, within 1 second. This time is so short that welding does not start. Moreover, the multiple times is, for example, about 3 times. That is, the setting of the welding navigation unit 15 is canceled by operating the torch switch 26 to perform an idle driving operation in which welding does not start. As a result, when welding work pieces having different welding conditions, the welding current can be easily switched in a short time.

  Further, for example, after welding a welded workpiece with the recommended welding value calculated by the welding navigation unit 15, the same or another welded workpiece may be subsequently welded under different welding conditions. In this case, apart from the recommended welding value to be executed first, the welding condition obtained by the welding navigation unit 15 and the welding condition obtained by empirical rules are set (stored) in advance in the remote controller 9 as another welding condition. It may be left.

  With this configuration, after welding a welded workpiece with the recommended welding value calculated by the welding navigation unit 15, the welding condition can be switched to the preset remote controller 9 immediately on the spot, and welding can be performed under different welding conditions.

  In addition, the arc welding apparatus was demonstrated as the welding apparatus 1 of this Embodiment. However, the present invention is also applicable to a non-consumable electrode welding Tig (Tungsten Inert Gas) welding apparatus that does not include the feeding device 7.

  The welding apparatus according to the present disclosure can cancel the welding conditions derived by the welding navigation unit by performing a release operation by operating a switch unit of a welding power source, a remote controller, a welding torch, etc. after calling the welding conditions in the welding navigation unit. The

  Even if the welding power source is away from the operator, the welding navigation unit can be canceled by operating the remote controller or the welding torch as the release operation. As a result, the labor and time required for the operator to move to the welding power source is eliminated.

  In the welding apparatus and welding method of the present disclosure, the operator can cancel the welding navigation unit 15 at hand. This eliminates the need for the operator to move to the welding apparatus, and is industrially useful.

DESCRIPTION OF SYMBOLS 1 Welding apparatus 2 Welding power supply 3A, 3B LED display part 4 Liquid crystal display part 5 Dial 6 Switch part 7 Feeder 8 Welding torch 9 Remote controller 10 Welding current input part 11 Welding voltage input part 12 Central processing part 13 Display processing part 14 Output processing unit 15 Welding navigation unit 20 Display unit 22 First input unit 24 Second input unit 26 Torch switch 28 Operation unit

Claims (18)

A first input unit;
Welding navigation part,
A welding power source having
A welding torch connected to the welding power source;
A remote controller having a second input and connected to the welding power source;
With
When the welding navigation part is selected,
The welding navigation unit calculates a recommended welding value according to the first welding condition input by the first input unit,
The welding power source is
When the release operation is executed, the recommended welding value is canceled, and the second welding condition transmitted from the remote controller is input,
A welding apparatus that does not input the second welding condition transmitted from the remote controller when the release operation is not executed. The welding apparatus according to claim 1, wherein the second welding condition is input by the second input unit. The welding apparatus according to claim 1, wherein the second welding condition is stored in the remote controller in advance. The welding apparatus according to claim 1, wherein the release operation is performed by the remote controller. The welding apparatus according to claim 1, wherein the second input unit includes a welding current input unit. The welding apparatus according to claim 5, wherein the welding current input portion is formed by a dial. The welding apparatus according to claim 5, wherein the release operation is to minimize a current value set by the welding current input unit. The welding apparatus according to claim 1, wherein the releasing operation is to operate the welding torch a plurality of times within a predetermined time. The second input unit has a welding voltage input unit,
The welding apparatus according to claim 1, wherein the release operation is to minimize a voltage value set by the welding voltage input unit. A welding method using a welding device,
The welding apparatus includes:
A first input unit;
Welding navigation part,
A welding power source having
A welding torch connected to the welding power source;
A mote controller having a second input and connected to the welding power source;
With
Select the welding navigation part,
Enter the first welding condition,
Calculate the recommended welding value from the first welding condition,
When a release operation is performed, the recommended welding value is canceled, the second welding condition transmitted from the remote controller is input,
A welding method including a step of not inputting the second welding condition transmitted from the remote controller when the release operation is not executed. The welding method according to claim 10, wherein the second welding condition is input by the second input unit. The welding method according to claim 10, wherein the second welding condition is stored in the remote controller in advance. The welding method according to claim 10, wherein the release operation is performed by the remote controller. The welding method according to claim 10, wherein the second input part has a welding current input part. The welding method according to claim 14, wherein the welding current input portion is formed by a dial. The welding method according to claim 14, wherein the release operation is to minimize a current value set by the welding current input unit. The welding method according to claim 10, wherein the release operation is to operate the welding torch a plurality of times within a certain time. The second input unit has a welding voltage input unit,
The welding method according to claim 10, wherein the releasing operation is to minimize a voltage value set by the welding voltage input unit.

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